Files must be named 000.bmp , 001.bmp , etc., up to 063.bmp . For Your Garmin GPS Device Custom Waypoint Symbol Creation in BaseCamp
Most Garmin devices support a maximum of 56 to 64 custom symbols. How to Install Custom Symbols garmin waypoint symbols download
Installation differs slightly between your computer and the GPS handheld itself. For Garmin BaseCamp (PC/Mac) Files must be named 000